Home / 143,933.83-198,564.48-83,469.45

Finding the Fourth Proportional to 143,933.83, 198,564.48 and 83,469.45

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Solution

The fourth proportional to 143,933.83, 198,564.48 and 83,469.45 is: 115,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,933.83 : 198,564.48 = 83,469.45 : x
  2. Step 2: Convert to fraction form
    143,933.83/198,564.48 = 83,469.45/x
  3. Step 3: Cross multiply
    143,933.83x = 198,564.48 × 83,469.45
  4. Step 4: Simplify right side
    143,933.83x = 16,574,067,935.14
  5. Step 5: Solve for x
    x = 16,574,067,935.14/143,933.83
  6. Step 6: Final answer
    x = 115,150.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.